Performance Tests 2
Keysight N8262A Service Guide 47
Test method
1 Obtain the S11 parameter of the Calibration System.
2 Connect the Measurement System to the Calibration System and obtain its
S21 (load) and S21 (open) parameters.
3 Using only the Measurement System, terminated with the OPEN connector
from the 85032B calibration kit, measure the 1 mW power reference level of
the DUT.
4 Remove the OPEN connector from the Measurement System, terminate it with
the 50 R load from the 85032B calibration kit, and repeat the 1 mW power
reference level measurement.
5 Using all of these values, the N7832A software will calculate the VSWR of the
power reference output.
– This test cannot be performed manually, due to the complexity of the
equipment calibration procedure and the complexity of the measurement
algorithm.
– No adjustment is available for this test if it fails (see Chapter 5,
"Troubleshooting Guide").